Union County, IN Shrink-Swell Risk

Union County, IN's soil, for shrink-swell risk

Moderate

Union County, IN: USDA's soil survey rates 82.6% of the county "Moderate" for shrink-swell potential (3.27% linear extensibility). A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What Union County's reading doesn't cover

Two lots a mile apart in Union County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Union County will actually do.

What it costs to find out, versus to ignore it

With Union County, IN rating "Moderate", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.

Union County's rank among Indiana counties

Nationally, Union County, IN is the 1,000-most-constrained of 3,085 rated counties for shrink-swell soil. Within Indiana alone it ranks 31 of 90. Union County, IN is 161 square miles with a population of 6,884.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Sanders County, MT and Rawlins County, KS are worth a look for comparison.

How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil

More of Indiana

Every county in Indiana is on this site, including Johnson County, IN and Fulton County, IN. The full underlying dataset is downloadable directly, one row per county.